I paid $250 for mine as well, came with Baseball and Tennis, both games requiring both sides of the machine. The games I owned for mine at one time or another:
Baseball
Tennis
Vs. Pinball
Iceclimber
SMB
Skate Kid Bros (SMB Hack)
Dr. Mario
Castlevania
Goonies
Gradius
Hogans Alley
Gumshoe
Excitebike
Vs. Golf
Tetris (Hogan's Alley PPU)
The chipsets and daughtercards are fun (and expensive) to collect, but like everything else, once you collect them all, you start losing interest in any of them. I sold my tent and most of my Vs. chips sets and don't miss them. I did keep a few, but plan to use them in an upright at some point, which is how I first got into the Vs. series. Not to be a downer, but Red Tents are hard to sell when you actually decide they take up more space than you thought they would.